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Identification of Blastocystis Hominis by Colonic Brush Cytology. A Case Report.
Acta cytologica
  • Elizabeth A. Dellers, MD, Lehigh Valley Health Network
  • J C Dunn
  • P DeSantis
  • C A Aronchick
Publication/Presentation Date
Blastocystis hominis is a unicellular organism the pathogenic potential of which in humans remains unclear. It may be identified during a workup for gastrointestinal symptoms, usually in stool examined for ova and parasites. We describe a case in which B hominis was identified by cytologic examination in a patient with Crohn's disease who underwent colonoscopy and brushing of a transverse colon stricture. The morphologic features of this organism are described and contrasted with those of the uninucleate cyst form of Entamoeba histolytica.
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Citation Information

Dellers, E. A., Dunn, J. C., DeSantis, P., & Aronchick, C. A. (1992). Identification of Blastocystis hominis by colonic brush cytology. A case report. Acta Cytologica, 36(5), 757-758.